Answer: (D) Competency
Explanation:
The competency is one of the capability that helps in demonstrating the various types of skill that helps in improving the efficiency of the performance.
It is refers to the set of functions which contain the various types of cognitive skill and the knowledge that performing critical functions. The behavioral and the function are the two main types of the competency.
According to the given question, the evergreen air center is one of the biggest parking system for the aircraft and based on the given scenario the evergreen's location is refers as competency.
Therefore, Option (D) is correct answer.